//
class Student {
    public String name;
    public int age;

    public void eat() {
        System.out.println(this.name + "正在吃饭");
    }
    public void nianling() {
        System.out.println(this.age + "已经这么大了");
    }
}

public class Main {
    public static void main(String[] args) {
        Student student = new Student();
        student.name = "susu";
        student.age = 15;
        student.eat();
        student.nianling();

        System.out.println();
    }
}